public int?

Question

Hi I came across this method not sure what does ? do and why it is there. thanks Bob public int? SubmitApportionmentValues( string program int Year int fiscalYear Dictionary values )

Manikavelu Velayutham · Answer

? --> its simply to denote we can return null value for the Integer variable. If you are not defining the integer variable with question mark it wont accept null values. it will throw error. http://msdn.microsoft.com/en-us/library/1t3y8s4s(v=vs.80).aspx Refer the above link it will help you to understand the nullable types